.650in. Lift Endurance Beehive Valve Spring Kit. Fits Twin Cam 2005-2017 & Sportster 2004-2021.

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 PART No: FE-1105

FEULING Endurance BeeHive valve springs are machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened with a specially processed thermal heat treat and super NexTex finish to give these valve springs the needed fatigue life to exceed the high demands of V-Twin engines from stock to performance.


Kits include: FEULING endurance BeeHive valve springs, lightweight super Titanium heat treated retainers, machined chrome moly spring seats and valve loc ks and a set of premium Viton valve seals equipped with a spring loaded valve stem wiper system.

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